As a noun immune is

As a verb immune is

English

Adjective

, title=(The Celebrity), chapter=5
, passage=Although the Celebrity was almost impervious to sarcasm, he was now beginning to exhibit visible signs of uneasiness, the consciousness dawning upon him that his eccentricity was not receiving the ovation it merited.}}

Preventive of any penetration; impenetrable, impermeable, particularly of water.

, title= Rapid Evolution in Eggs and Sperm
, volume=101, issue=3, magazine=(American Scientist)
, passage=Many genes with reproductive roles also have antibacterial and immune functions, which indicate that the threat of microbial attack on the sperm or egg may be a major influence on rapid evolution during reproduction.}}